Oil burner and fire control device



Oct. 6, 1953 J. G. GILMORE El AL on. BURNER AND FIRE CONTROL DEVICE Y 2Sheets-5heet 1 Filed March 14, 1949 moawuoooouooooooo 0 000000000000000Oct. 6, 1953 Filed March 14, 1949 J. G. GILMORE El AL 011. BURNER ANDFIRE CONTROL DEVICE 2 Sheets-Sheet 2 I V IYTOR. Jqcksorz g/nzore BY Wllzam H. Gzlmom Patented Oct. 6, 1953 ate-4,4123 OILvBURNERr AND FIREcou'momnavica Jaekstirre:enifiai na Wil'l'iiiinfh? minim:

Applicationlv larch l, 1949; Seria1=No.= 8lj276 12' cianiis'fi- (01.153- 411 This" 'iIiVl'ifiOn relates td" YimpiO VeI fifits. ifi oilburners" and fire control; devices amines idiian" object to" equip themore or.Tlessicdnveritionalf' pottype. oil burner nowaniwidespieaause'with the "fire resulting from: such coihb'fistibr'iat 16w orf'pilo'tfire'stag'e' and also toT'providel means 'to contro'lthe flow of"gases'Tof co'riibilstibnin sec-1i wise, as to "produce an 'eflicien'tand sati'sfatdfi'r' i intermediate and/or high are 'wh'reb'v 'iniarkd"economy may be "obtaihedfin 110w fire "operation with a low fuelconsumption and cleanifir'e where" byeflicient, clea'nfand generallysatisfactory in"-. termedi'ate'and high fires may be obtained by" in'-creasingfth'e fuel "supply.

Another. object isfto providea "control deviee' whichm'ayiloe readilyadded to existingrpot type burners now in. operation 1 without necessityfor rem'ovalfof 'such'iburners' f rointheir environment. 'I'hesejand"other objects" will be moreifullyfsef' go forth and described inth'eaccornpariyingspeci cation and illustrated in" the accompanying drawing; in which:

Figure 1 is a vertical 'sedtion through "the poti'i type burner havingour control devices incorporated therein;

Fig; --'2 'is -a horizontal sectientaken-'a1ohgtheline; 2 2 or Fig.1;

Fig. 4 is a detailedsection alohg thedine 4 4 of Fig. 1;

Fig. 5 v,is a fragmentary sectional...view-home. imodified form ofcontrol member;1

Fig. 6 is an. elevation in perspective of a modified form of shieldmemhergi and I Fig. '7 is a vertical section of a completeburn erillustrating the modifled'elementsloLFigs ,5 and 6 in .assembledrelation.

Like niiinerals referto like elements thr'ough l: 40 out the drawing; inwhich I0 indicatesflthe-oil burner pot generally, the' same being;.provided;. with a closedmottom l l and an enclosin side, wall l2 "openat the,.top and dll'bw a l'dly periph -l erally flangediat the top fromthe flange 13. oil inlet I5 is provided atthe.bottomoithe wall l0 andcornm nmicates with the. interiprof theLpot in alignment with ashallomradial trough laig. As illustrated the pot may be made intwolsecltions, thehbttom'section being provided witmfa flange l b.overlapping the bottom. of .,the side wallgjj and; secnlged tightlythereto-as .byuyveld ing or the like The side wall 12 is provided withran qlh r z i ilxl 1Qi1 asil teiih -i1 @1555 the iiiatv ngsfjfrh ii elmw iis r necessaril'j inclined. dovvnw ardljz a illlqsjggjtefiQl e the nt is have. f shaman cue; i efii? eb a iii eq ieat qe m. s ch. b9 952 by.9

The po'tis inoi 'nted 'i ri any s'uitahl l g in a spacedfsiirrofindingcasing or drumlfl conthrough the air holes ii -the pot side wall. l2 Tormixturefwith nierga 'sjgeneratedftherein. f The ring I 6' 'servstdclosetlie space between the} pet ",1 anclifthecasing' l8 at thetopmvvas ill'ustratedin whereby volatilization of a smallamo'unt of oilused for the pilot fire is enhanced, thereby contributing to theefiiciency and economy of the burner at such pilot fire stage. Forcontrol of into the pot and thereby contributes to its quickervolatilization, as stated, and thus contributes to the maintenance ofproper combustion at low or pilot fire. It is our aim to protect the oilsupplied to the burner at intermediate or high fire stages to asubstantial degree from radiant heat from the flame or flames above thering 250, thereby avoiding undesirable cracking of the oil or oil gasesat suchstages of fire which otherwise would occur and which would leadto the deposit of objectionable carbon in the pot. The bottom plate 2511also shields the incoming oil to an appreciable the gases forintermediate and/or high fire, we

provide a shield generallydndicated by numeral 28, the same comprising atopplate-like portion 2811. with a central aperture 28b and withdeflector portions 280 shown in the embodiment illustrated as generallysegmental in shape and infclined upwardly and outwardly from the centralportion of the plate 28a. These deflectors overlie the resultant ports22d and serve to direct gases flowing upwardly therethrough outwardlytoward the pot side wall for better mixture of such gases with theinflowing jets of air at intermediate and high fires. At the same time,these deflectors servev to shield or contribute to the shielding of theoil inthe bottom of the pot from the radiant heat of the flame ofcombustion. ,The openings 25c and 28b are in general alignment andpermit easy access to the bottom of the burner with a torch or otherlighting means for initial ignition of the oil in the burner.

The shielding plate 28a is provided with downwardly extending legs 28cwhich are mounted upon the flange 250 of the member 25, being providedwith pins 28 seating in suitable pinholes or apertures in such flangeand in the ring 20 thus insuring proper location or positioning of theshielding member relative to the member 25 and I the ring 20.

With oil supplied in sufficient amount and gas generated in sufficientvolume for high fire, visible I combustion will not occur, due toinsuficient sup- .1 ply of air, until the jets from the air holes He areencountered by the upwardly flowing. gases whereupon, the proportion.between suchgases and the .so-called secondary airbeing properlymaintained, a desirable and satisfactoryhigh fire will result and thesame will be largely or wholly above the ring [5 which serves to compactthe gases and resultant fire for more efiicientcombustion and heating asis well known in the'art.

It is our belief that by restraining the now of gases from the bottom ofthe pot at low fuel supply by means of the ring 20, member 25and theshielding member 28, while permitting re'strained flow inwardly of theports 251), we are able to compact such gases as are generated and. aremixed with air flowing through the primary air holes l2a in such wise asto insure efficient combustion at very low fuel supply while permittinga quick transition from low fire to intermediate fire or directly tohigh fire when the demand for heat arises. At the same time, the area ofthe holes 2512 is suiflcient to permit the flow of the requisite volumeof gases to support intermediate and/or high fire when demanded.Undoubtedly, 1

after starting of our burner when it has reached normal operation,additional heat is radiated from the ring 20 and the control member 25,particularly' the bottom 25d thereof, which contributes to thevolatilization of the inflowing fuel Oil. 7

The reflector 25 of member; 25 directs heat upon the infiowing oiladjacent.v its point of entry degree at least from any flames or visiblecom bustion occurring inside of the collar 25a as at low fire. Heat forvaporization, at intermediate and high fires; i's ebtained insubstantial amount,

of pot type burners unable to handle satisfactorily the catalytic blendfuel oil so largely producedat the present time, our burner is designedto handle such oil and has demonstrated its ability so to do whileoperating satisfactorily at very low fuel supply for pilot fire which isalso highly desirable, as is well known to those familiar with the art..

To extend the benefits of our invention to users of such outstandinginstallations, we have constructed our member 25 and shield 28 in suchmanner that they may be readily inserted in and mounted upon the firering in the majority of present installations. We find it desirable,'however, to provide for positioning of these members as illustrated in thedrawings and in the event a flat ring 20 is encountered, it, isnecessary or desirable to provide a flange or ring or some equivalentmeans around the aperture Zfla in the ring 20 and extending thereaboveto receive the flange In a concrete were utilized. This being what isknown as an 8 inch burner in the trade, the pot is of .approxi-' mately8 inches in diameter. portant dimensions are as follows:

Outer diameter of ring 2!J 7% inches. Diameter of ring aperture 201i 4inches. Approximate height of v the burner pot Row of air holesl2a'above th bottom of the pot Distance between air holes [2a 7 inches.

2 inches.

and lZb 1 /8 inches. Distance between air holes l2b and |2c l /ginches.Distance between air holes I20 and, l2d 1 /8 inches. Distance betweenair holes 1201 and I23 linch.

Diameter of opening at the top of control member 25 Ports 25b, 18 innumber-di- 4 A; inches.

It is to be understood that different dimen-- sions, particularly of airholes, etc.,- arerequired I for: diiTerent size burners.

Where it is considered desirable, the shield- 11 g $lement'28 maybe'omitted'as for a continuous embodiment, of our invention in an oilburner, thefollowing important dimensions The other imarteries collarindicatedat-l 25a constructedto direct heat beyond the oil' floWin'gintothe omslieu ofthe"- reflector member 2 5} of the formsshownin-Fig's: 12.1813? 111mg. 6 we have illustrated a-modified iormof shield generallyindicatedbyth'e'numeral I28 andhav'ingan inverted tapered deflectorportion I 2812 slightlyconcaved externally; as illustrated, and providedwith downwardly' directedand outwardly- -extendedlegs constructed andarrangedto rest uponthering 20 -to deflect the; upwardlyflowing-gases-;upwardly*toward the side wall -fol? the burner Whileshielding the bottom of the pot" to a -large extent from-the radiantheat ofyany; flame or visible combustion above-suchdeflector.

ImFig: 7 3 is illustrated, the complete assembly of thdmodifiedcontrol'member I and modified shield I28 in position in an oil burner.

While we have illustrated and described one embodiment of our invention,it is to be understood that we-do not-wish tobe restricted to thespecificdetails thereof except as the appended claims may be, so limitedwhen properly con-J l' fili-i What we claim is:

1.;Anoil burner comprising a pot havingla bot-.-, tom, ;an;enclos ingside wallfand Open at the tops, a plurality-of rows of air holes in saidsidewall,' a centrally apertured ring in said pot above some of said airholes, means to support said ring, a fire-control member mounted in theaperture of said ring and having a collar portion depending therebelow,said collar portion being provided with ports below said ring and withan opening at the top, said control member being provided with atransverse bottom extending across said vided with an aperturetherethrough and reflecting means overlying said aperture, positioned toreflect heat on oil flowing into said pot, and means to supply oil tosaid pot.

2. An oil burner comprising a pot having a bottom, an enclosing sidewall, and open at the top, a plurality of rows of air holes in said sidewall, a centrally apertured ring in said pot above some of said airholes, means to support said ring, a fire-control member mounted in theaperture of said ring and having a collar portion depending therebelow,said collar portion being provided with ports below said ring and withan opening at the top, said control member being provided with atransverse bottom extending across said collar portion, said bottomportion being provided with a struck-up reflector and an openingtherebenea'th, said reflector being inclined and positioned to reflectheat upon oil flowing into said pot adjacent its point of entrance, andmeans to supply oil to said pot.

3. An oil burner comprising a'pot having a bottom, an enclosing sidewall, and open at the top, a plurality of rows of air holes in said sidewall, a centrally apertured ring in said pot above some of said airholes, means to support said ring, a fire-control member mounted in theaperture of sa-id 'ring-and-l i'av-ing a- -'colla'rportion (le pendingtherebelow;- said col-lar portionsbeing== provided'with ports below-saidring and with -an opening at the top, said: control member beingprovided -with a-transversebottom extending across said-collar portion,said transverse bob tom beingprovided i with==- an aperturetherethroughand"-a--reflectingmeans overlyingsaid aperture --and= positioned-toreflect 5 heat on= oil 1 flowing into said pot; saidbottomportionbeing-ufurther provided with a central" openingtherethrough andineans-tosupplyoil to: saidpot;-

4: An oil burner "comprisinga pot having a bottom and amenclosing side=wall open at the a top, a-plurality of-rows of- 'airholes-in said sidewall, a centrally apertured ring in said pot above some "ofsaid airholese meansto support said ring, a fire-control-rnember-mountedin theaperture of said ring and having;a collar portion= depending therebelowsaid-collar portion-being provided with ports below said "ringand'i-with 'an opening at the top, said" ;con-trol-member being providedwith a transverse bottom extending across saidjcollar'portion; saidtransverse bot -tom being provided -with an' aperturetherethrough and areflectingmeans overlying saidaperture and positionedte reflect heat-on: oil flowing into said pot;said member'wall being" outwardlyflanged-"to-rest'upon-said ring," and means to supply oil to said pot.

5.An oil burnercornprisinga pot-havingga bot--tomandan-enclosingsideiwall open at the-top; a plurality of rows of air;holes in said "side walk a centrally aperturedring'in said-"potabovesome of said'air holes; means to' -support said"ring,:a"

fire-control member-mounted in ;the aperturebf'i saidring and having a",collar' portion depending 1 therebeloW,-' said collar portion. "being:"provided with ports below said "ring and Withan open= ing at the top, ashielding member comprising a top portion located above and spaced fromsaid control member, said top portion being provided with portsextending therethrough and deflectors overlying said ports, and means tosupply oil to said pot.

6. An oil burner comprising a pot having a bottom and an enclosing sidewall open at the top, a plurality of rows of air holes in said sidewall, a centrally apertured ring in said pot above some of said airholes, means to support said ring, a fire-control member mounted in theaperture of said ring and having a collar portion depending therebelow,said collar portion being provided with ports below said ring and withan opening at the top, a shielding member comprising a top portionlocated above and spaced from said control member, said top portionbeing provided with ports extending therethrough and deflectorsoverlying said ports, said deflectors being directed upwardly andoutwardly to direct gases flowing through said ports toward the sidewall of said pot, and means to supply oil to said pot.

7. An oil burner comprising a pot having a bottom and an enclosing sidewall open at the top and a plurality of rows of air holes in said sidewall, a centrally apertured ring in said pot above some of said airholes, means to support said ring, a fire-control member mounted in theaperture of said ring and having a collar portion depending therebelow,said collar portion being provided with ports below said ring and atransverse bottom being open at the top, a shielding member comprising atop plate located above and spaced from said control member, said platebeing provided with segmental portions bent upwardly and 7 inclinedoutwardly to form underlying ports, said ports being shielded by saidupwardlybent portions and means to supply oil to said pot.

8. An oil burner comprising a pot having a bottom and an enclosing sidewall open at the top and a plurality of rows of air holes in said sidewall, a centrally aperturedring in said pot above some of said airholes, means to support said ring, a fire-control member mounted in theaperture of said ring andhaving a collar portion depending therebelow,said collar portion being provided with ports below said ring and atransverse bottom being open at the top, a shieldin member comprising atop plate located above and spaced from said control member, said platebeing provided with segmental portions bent upwardly and inclinedoutwardly to form underlying ports, said ports being shielded by saidupwardly bent portions, said plate being provided with supporting andlocating means, and means to supply oil to said pot.

9. An oil burner comprising a pot having a bottom and an enclosing sidewall open at the top and a plurality of rows of air holes in said sidewall, a centrally apertured ring in said pot above some of -said airholes, means tosupport said ring, a fire-control member mounted in theaperture of said ring and having a collar portion depending therebelow,said collar portion being provided with ports below said ring and atransverse bottom being open at the top, a shielding member comprising atop plate located above and spaced from said control member, said platebeing provided with segmental portions bent upwardly and inclinedoutwardly to form underlying ports, said ports being shielded by saidupwardly bent portions, said plate being provided with depending legsand means carried thereby to engage said ring whereby said plate isproperly positioned with respect to said control member and ring;

member of plate-like construction superimposed upon said member inspaced relation thereto and provided with ports therethrough anddeflector members overlying said ports.

12. A fire-control device for oil burners comprising a member having anapertured collar portion and a transverse bottom plate, a shieldingmember of plate-like construction superimposed upon said member inspaced relation thereto and provided with ports therethrough anddeflector members overlying said ports, said shielding member and saidcontrol member being provided with aligned apertures.

JACKSON G. GILMORE; H. GILMORE.

References Cited in the file of this patent UNITED STATES PATENTS NumberName Date 2,195,027 'Faulds Mar. 26, 1940 2,258,679 Hayter Oct. 14, 19412,265,797 Breese et al. Dec. 9, 1941 2,316,226 ,Donley Apr. 13, 19432,339,637 Hayter. Jan. 18, 1,9491

